The purpose of the original lawsuit started in 2003 was never to "win" anything.
Remember that it was Microsoft who bankrolled it in the first place, and the fact that the lawsuit started in the year 2003 is no coincidence.
2004 was declared the much-derided "Year of the Linux Desktop", and it was correct; Linux had become good enough to use on the desktop in any corporation. (I've been using Linux since 1998).
Just look at the Munich Linux migration as an example.
Microsoft desperately needed some way to convince the MBAs running corporations to keep Linux off the desktop as cloud and Azure were not a thing back in 2004.
They found it in the form of legal risk; use Linux, get sued.
Back in 2003 it created quite a stir, with AutoZone and BMW being directly sued by SCO for their use of Linux.
Almost all potential corporate users got spooked, as the lawsuits got widely publicized.
A few generations of MBAs graduated learning that Linux is a legal risk, and now, even if Linux runs the entire infrastructure of most corporations, you are allowed to access it only via a text terminal.
In 2026 Microsoft has captured all the corporate e-mail market (all of it hosted on Azure by now) via some well-publicized data breaches of in-house servers at the beginning of Nadella's reign.
Most of their revenue is from the cloud, but they still want Linux off the desktop.
What people use at work will want to use at home as well.
Therefore, there will be attempts to keep this lawsuit going for as long as possible.